William w



(No Model.)

- W; WALLACE. BRICK AND TILE MACHINE,

N0. 288,894. Patented Nov. 20, 1883.

TIL

INVBNTOR 977% BY WITNESSES ATTORNEYS.

N. Prrtns. Fholwlilhngnpbfll'. Washington, D. c.

UNrrnn STATES PATENT @FFICE.

WlLLlAM w. WALLACE, or FBANKFORT, innrnlvn.

'BRECK AND TILE MACHINE.

' SPECIFICATION forming-partof Letters Patent No. 288,894, dated November 20, 1883.

./ Application filed March 30,1883. (No model.)

To all whom it may concern:

Be itknown that I, WILLIAM W. WALLAoE, of Frankfort, in the county of Clinton and State of Indiana, have invented anew and Improved Brick and Tile Machine, of which the fdllowing is a full, clear, and exact description.

My invention consists of an improved contrlvance of apparatus for utilizing hydraulic and screw pressure together in the press for.

pressing the clay through the dies for forming the bricks, tiles, and other objects, by which stiffer clay can be worked and the products increased.

It also consists of an arrangement of two presses and pressing apparatus in such relation with the mixer that the operation may be continuous with reciprocating presses by al ternate action; and it also consists of improvements in the apparatus for combining the hydraulic and screw presses, all as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is partly a plan view and partly a horizontal section of my improved press. Fig. 2 is a side elevation. Fi g. 3 is an end elevation, and Fig. etis a transverse section of Fi g. 1.

I arrange two pressing-cylinders, a, side by side horizontally, each having a spiral presser-screw, I), located at the end where the clay is to be pressed out through the dies 0, and a reciprocating plunger, d, to condense the mud and force it onto the screw. The mixer e is located over the pressing-cylinders, so as to discharge into both through passages f, and the shaft 5/ of the mixer extends down through the bottom of the mixer-case and between the cylinders to the space below, where it gears by bevel-wheels h with a horizontal shaft, 2', extending to the housing-framej at the opposite end of the machine, where it gears by the wheel i. with the wheels m, that turn the pressing screws by their shafts '11., one of which wheels at gears with the drivingsh aft oby the pinion p. The shafts n extend through the plungers d, and also through tubular rods g of said plungers, which extend through the hydraulic cylinders 8, wherein they have pistons 23 connected to them, and out through stuffingboxes a. The hydraulic cylinders are connected by the induction-pipes o and threeway cock w with a system of hydraulic pumps, 00, and with the reservoir y by the eduction-pipes z and the three-way cook it. These cocks are connected by arm 1), lever c, and connecting-rods d and c with a shifter consisting of weighted lever f and a poisinglever, g, which is operated by one of the plunger-rods q, by bar 2 and arm 1), said bar having pins Z to throw it at the proper time, so that when the plungers arrive at the end of the stroke in one direction the shifter will reverse the cooks, so that the plungers will be reversed, said plungers being connected together by their rods q and a chain, j, and pulley 15', so that by alternately exhausting the filled cylinder and filling the empty one the continuous action of the hydraulic reciprocating plungers will be produced, the plungers being forced against the clay by the hydraulic liquid, and being forced back by each other. The pumps are geared in this case with the shaft 0, and will be arranged as such pumps commonly are. \Vhen the plunger of one pressing-cylinder is going forward, the delivery of clay to said cylinder from the mixer will cease, the other one in which the piston is going back then being filled. By the use of the two forms of pressers clay can be worked much stiffer and with less tempering, in which condition it is more uniform in temper, and the work may be done faster.

Having thus described my invention, what Iclai-m as new, and desire to secure by Letters Patent, is

1. The combination, in a machine for pressing tiles, bricks, and other articles through forming-disks c, of ascrew-presser and a hydraulic plunger, substantially as described.

2. The combination, in a brick-machine, of

chine, of a pair of hydraulic plungers, d,

pair of reciprocating hydraulic plungers and hydraulic apparatus for Working them, the said plungers connected to each other by the rods q, chain j, and a pulley, k, for. reversing the plungcrs by each other, substantially as described.

6. The shafts n of the screw-pressers, extended through the hydraulic plungers and their rods, and geared with the mixershaft and driqing-shaft, substantially as described.

WILLIAM WV. WALLACE.

Witnesses:

SAMUEL P. FISHER, JEROME R. VVATsoN, 

